similar to: active_record postgresql adapter problem

I have looked at examples for this. I found a similar example in the Agile Web Dev... book but that didn''t help. Here''s what i am trying to do. A Cart has many line items. On the Display Cart page, I want to provide the user the option to update quantities. Here''s the rhtml code: <%= start_form_tag :action => ''update_cart'' %>

Please can someone show me the correct syntax for a hidden field in forms, this is my code <%= start_form_tag :action => ''create'' %> <div class="form1"> <table width="auto" boader="8" cellspacing="5" cellpadding="5"> <% hidden_field ''line_item'', ''client_id'', :value

Hi, I have two objects: Contacts Lists I want to be able to add multiple contacts to multiple lists. I''ve created a linking table and a form that allows me to select the contacts using checkboxes, but I''m having some problems with the controller and model. I receive the following error message when I submit the form: Mysql::Error: Cannot add or update a child row: a

Hi all, I have a little function called format_price(price) that simply formats the argument as a dollar sign, dollar amount, dot and penny amount. Then, in a .rhtml file, I could do this: <%= format_price(item.unit_price * item.quantity) %> But where do I put the format_price() function definition? The app couldn''t find it in app/controllers/application.rb. Where do I put it

I''m doing the depot example in the Agle Web development book. I''m getting this error: "undefined method `product'' for #<BigDecimal:331ce70,''0.21E1'',8(8)> " "Extracted source (around line #9): 8: for item in @items 9: product = item.product 10: -%> 11: <tr> 12: <td><%= item.product%></td>"

I am using this line on my index.rhtml page to capture the quantity required of a particular item for a basic shopping cart app: <%= text_field ''line_item'', ''quantity'', {:size=>3} %> </td> but my next screen (a cart screen) doesn''t reflect what was entered in that text field when the item is added to the cart. That is,

I want to modify and update the items in the Depot - "display_cart". Since the cart is in a session, its a little hard to get at the data. I just want to create a way to change quantities, prices and recalculate. Has someone done this, and could you point me to the right direction. Thanks Chas -- Posted via http://www.ruby-forum.com/.

I went throught the "agile web developemnt with rails" and Now I''m trying to ''enhance'' the code with some extra options. When I go to admin/shipping I want to include some data from the products table in with the order info listed. I can''t seem to get this to work. in my partial form I''m trying to add this: <td

Hi, I am writing following line in my code:- ================= @product1=Product.find(:all, :conditions => ["id = ? ", params[:product][''product_id''+count.to_s]]) print @product1.inspect =========================== So I am getting on console following output. ========================== [#<Product:0x3cd61c8 @attributes={"demand"=>nil,

Good evening. I have this following table and I would like to turn it into a matrix in which my rows would be filled with de "Sellers", my columns with my "Articles" and my data would be the mean unitary price used by each seller in each produt. Seller Art. Unit Price 1 v1 p1 9.148352 2 v2 p1 2.858073 3 v3 p1 3.775315 4 v4

Hi, This is my rHtml page & Corresponding actions & model pages:- ===listform.rHtml================= <h1>Products List</h1> <%= start_form_tag(:action => "add_to_cart")%> <table> <tr> <% i=0 %> <th> Product No. </th> <th> Unit Price </th> <th> Available Qty. </th> <th> Demand Qty. </th>

I''d like to be able to comment out a few lines of RHTML code easily. With HTML you can just surround the code in <!-- ... -->, but if you do that with the RHTML, it still gets executed, then the resulting HTML is commented out. Sometimes I''d like to be able to leave the code in but not have it evaluated..usually just for quick tests, but sometimes I want to take the

Here are a few suggestions, wondering what others thought: When you generate a model for a DB table, it would be nice if the model.rb contained the DB schema (kind of like # commented out schema) right in the model file. This would make reference WAY easier and put all of the DB stuff in one easy file. Thanks. also nice, of course, woudl be for rails to try and ''guess'' the

The Problem: how to do the validation. I have not written it correctly!!! Given two tables: sizes and prices; with a relation: has_many ,belongs_to a Price.unit_price for a given Size.meassure must be marked ''true'' as the standard unit_price for that meassure. There will be many other unit_prices for a given meassure, those must be marked ''false'' table

The ''Agile Web'' book says that you can iterate over a list of children as so: order.line-items.each do |li| etc... This is fine when you need then all consecuitvely, but I need to pull the first one for the top of the page and still list all at the bottom. So, the question is: How do I reference the first item (child) directly? Thanks Lance F. Squire -- Posted via

>From: Josh Kieschnick <jjkiesch@...> >Subject: Re: "Undefined method" problem in "Agile Web Development Wit >Newsgroups: gmane.comp.lang.ruby.rails >Date: 2006-03-22 04:39:56 GMT (19 weeks, 4 days, 23 hours and 8 minutes ago) >I am working through that book as well. I am getting the exact same >error. I thought it was something I did wrong but I have no

Hello, When i test this code <h1>contenu de votre panier</h1> <table> <% for item in @items product = item.product %> <tr> <td><%= item.quantity %></td> <td><%= h(product.title)%></td> <td align="right"><%=item.unit_price %></td> <td align="right"><%=item.unit_price * item.quantity

Good day. I have setup of a text field with auto complete and I need to grab the value from that text field and pass it into a method to update a row in a table. Here is the view: <tr> <td align="center" colspan="6"><%= text_field_with_auto_complete( :product, :product_code ) %></td> </tr> <tr> <td

I am getting an undefined method error in my cart.rb class when trying to find in an array. I cannot see what my error is. Perhaps a view more eyes can help me with this: #--------------------------------------------------------------- 1 class Cart 2 3 attr_reader :items 4 attr_reader :total_price 5 6 def initialize 7 @items = [] 8

Hi, I have a data file with all our purchases from last year, it contains the unit price, count, and total dollars spend. Now I'm looking for some way to "classify" all our purchases to find out which purchases are the best ones to find cheaper alternatives. for example: if we only buy 1 item of a product which costs 5 dollar, we maybe can find a cheaper product of 4.5 dollar, but